Pipe-coupling.



Patented ont. '3,' |899;

' H. n. KELSEY.

PIPE couPLluG.

[Appximion med .my 19, 18994 .(No Modem THE nomvirens cu. Pramouno..wgsm UNrrnDv STATES PATENT FFICE.

HENRY O. KELSEY, OF SALAMANCA, NEV YORK, ASSIGNOR OF T'WOz THIRDS TOWASHINGTON S. HATCH AND LA MOTTE HARRINGTON,

OF SAME PLAGE.

Pipsoo UPLlNeQ SPECIFICATION forming part of Letters Patent No.634,08*?dated October 8, 189,55).

- manca, inthe county of Cattaraugus and State of NewYork, have inventedcertain new and useful Improvements in Pipe-Couplin gs and I d o herebydeclare the following to be a full, clear, and exact description oftheinvention,

such as will' enable others skilled in the art to which it appertains tomakeand use the same.

This invention has relation to improvements in pipe-couplings of thatstyle or kind adapted for uniting the abutting ends of pipesections, andis particularlydesigned for expeditiously, conveniently, and effectuallysealing the joints of pipes against leakage, and therefore theinventionis adapted for the purpose to all kinds of pipe-joints or leaksin pipes. l

The invention consists in the novel construction of parts and theircombination, as will be hereinafter more fully described and thenparticularly pointed out in the claims.

The invention is fully and clearly illustrated in the accompanyingdrawings, where- Figure l is an end view of the complete device asapplied to pipe-sections. Fig. 2 is a vertical longitudinal sectionalview through the assembled parts. Figs. 3 and 4- are detail views of thesegmental strips or blocks.

It will be premised that it is one of the objects of the invention toprovide a means for insuring against leakage at the joints of largeconduit pipes, wherein great or excessive pressure is present andusual-such as oilconduit pipes, steam-pipes, water-pipes, andlgas-pipes, wherein at the joints under present and usual pressure thecontents of the pipes are forced through the joints and de-y stroy theirefficiency and security, and these.

objections and ldefects are overcome or reduced to a minimum by theapplication of these improvements;

Referring tothe drawings, A A designate two pipe-sections arranged withtheir ends abutting andprovided with external screwthreads, as usual. Bdesignates the couplingsleeve, of such length as may be desired orrequired and provided with internal screwthreads to engage with thethreads on the V Application tiled July 19, 1899. Serial No. 724,353.(No model.)

pipe ends and couple the same in the usual manner. Thel ends of thecoupling-sleeve are preferably rounded or inclined, at as l, to set'within the recesses or seats formed in the under faces 'of thesegmental clamping strips, bars, or blocks.

About the clam ping-sleeve B are seated and disposed a plurality oi'segmental clamping stri ps, bars, or blocks C, arranged side by side andcompletely surrounding the couplingsleeve, substantially as shownY inthe drawings; The vertical sides of these segmental clamping-strips lareformed with elongated recesses or seats 2, those in contiguous segmentsbeing coincident, as indicated, and in the space thus formed between thewalls of the segments'are placed plates 3, oi' wood orr soft metal,somewhat'thicker than the space in which they set in order that thesegments will be slightly separated `and normally be raised from thecoupling-sleeve, so that when the segments are forced into clampingposition the interposed plates will be pressed tight into position. Thesegments C are formed with do wnward-extending interior end dan ges 4,which set, down tight over the ends of the coupling-sleeve and compressand tightly seal the sleeve and joint. In the upper surface of eachclamping-segment is formed a keygroove 5, in which are placedclamping-keys 6 6, which take under the exterior sleeve and forcethesegments down into clamping position, as indicated in Fig. 2 of thedrawings.

D designatesan outer sleeve or shell arranged on the segmental stripsand`held into position by the force of the keys. I l It will now beperceived that a very strong and durable jointure or coupling has been'provided which is readily and speedily applied.

In the instance involving the construction and arrangement of partshereinbefore denew Work and are assembled by iirstscrewing thecoupling-sleeve in position on one of the pipel ends, then arrangingthe' outer shell thereon, then placing the segmental strips and scribedthey are adapted for connection with I IOO dcvice to old cond uit-pipeswithout removing the pipes to be coupled or to a coupling or joint whichleaks, the outer ring is made in halves and formed with strong lugs aa', in which are formed alining bolt-holes b b', in which are iittedstrong clamping-bolts c c, whereby the sections of the outer ring aredrawn tight and firm on the segments and the joint made iirm, tight, andsecure.

Instead of the keys set-screws d may be substituted, as indicated in thedrawings. It will be perceived that in instances where great strength isnot required the segmental strips may be dispensed with and the outerring set about and over the coupling-sleeve and the keys driven betweenthe couplingsleeve and the outer ring.

It will be perceived that the invention is equally applicable forsealing and closing crevices or cracks in pipes, and in these instancesis applied just as when used for a coupling.

Having thus described the invention, what is claimed isp l. The deviceherein described for sealing crevices in, or in the couplings of pipes,comprising a band orsleeve fitted on the pipe, segmental clamping-stripsarranged around the said sleeve,an outer sleeye loosely arranged on thesegmental strips, and means for clamping the segmental strips down onthe inner sleeve, substantially as described.

2. In a device for closinglea-ks in, or in the couplings of pipes, thecombination with the sleeve surroundin g said pipe, of an envelopingcasting of larger. diameter than the pipe and segmental clamping stripsinterposed between the sleeve and casting, having longitudinal channels,and wedges, adapted to be driven in said channels, between the interiorof the castingA and said strips, whereby pressure is given the sleeveand forcing it upon the pipe, substantially as described.

3. In a device for closing crevices in, orin the couplings of pipes thecombination with the pipe and band, or coupling-sleeve adapted tosurround said pipe, and a sectional casting having its interior openinglarger than the diameter ofthe pipe and provided with channeledremovable blocks, and wedges interes4,o87

posed between thcinterior of the casting and blocks and engaging saidchannel, whereby when the wedges are driven therein, the blocks forcethe sleeve tight upon the pipe, substantially as described.

4. A portable closing device for closing crevices in, or in thecouplings of pipes, to prevent leakage comprising a sectional castingbolted together having an interior space for surrounding the pipe and oflarger diameter than the latter, the band or sleeve and a series ofclamping strips or blocks having longitudinal channels adapted toreceive wedges,said strips being interposed between the pipe-band andthe interior surface of the casting, whereby when the wedges are driveninto the channels the blocks or strips forcethe band against the pipe,substantially as described.

5. The within-described device for closing crevices in pipes, consistingof a sectional casting adapted to surround said pipe and hold ittogether, a band or sleeve and strips interposed between said castingand band on the pipe and having longitudinal channels, and Wedgesadapted to be driven in -said channels,whereby the band is forced uponthe said pipe, substantially as described.

G. In a device of the character described the combination with a pipe,of a sleeve iitted thereto, a plurality of segmental clampingstripssurrounding thesleeve, plates ot compressible material between the saidstrips, and an outer sleeveloosely arranged on the said strips, andmeans to clamp the strips down on theinnersleeve, substantially as setforth.

7. In a device of the character described, the combination with a pipe,of a sleeve fitted thereto, segmental clamping-strips around the sleeve,plates of compressible material between the strips, clamping-sectionsover the strips, and clamping-bolts to clamp the sections together,substantially as described. In testimony whereof I aflix my signature inpresence of two witnesses.

HENRY O. KELSEY.

Witnesses:

J. J. NELLIGAN, E. H. BATES.

